K&N Replacement Air Filter Monster S2R / S4R BRAND_Denali Lighting Each filter piece has pleated

Each filter piece has pleated media

With everything from copper head gaskets to rocker box and carburetor gaskets

Optional Replacement Circlip (not included): CW12

Optional Replacement Needle Bearing (not included): N1037

comes an oil mixer included

K&N Replacement Air Filter Monster S2R / S4R BRAND_Denali Lighting Each filter piece has pleatedThis K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles. Unlike K&N replacement air filters, fuel management modifications will be necessary with this racing filter. K&N racing air filters are washable and reusable. Features: Designed to increase horsepower and acceleration. Designed for racing and track applications, not for street use. Washable and reusable